Louisiana
Ouachita Parish drinking water quality
31 active public water systems serve 188,938 people in Ouachita Parish. 14 are compliant, 17 had at least one EPA violation in the past three years, 0 are designated serious violators, and 3 carry a health flag.
Needs attention
Community water systems
26 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
City of Monroe Water System |
57,000 | 3 | 0 | |
|
City of West Monroe Water System |
16,005 | 1 | 0 | |
|
Gowc West Hwy 80 Ark Road WS |
14,649 | 1 | 0 | |
|
Gowc North Water System |
13,287 | 0 | 0 | |
|
Gowc East Water System |
11,742 | 0 | 0 | |
|
Cheniere Drew North Water System |
11,280 | 0 | 0 | |
|
Southwest Ouachita Waterworks, INC |
10,725 | 1 | 0 | |
|
Gowc Brownville Water System |
9,696 | 1 | 0 | |
|
Gowc Kiroli Darbonne WS |
9,210 | 1 | 0 | |
|
Gowc South Monroe WS |
7,335 | 0 | 0 | |
|
Cadeville Water District |
6,219 | 2 | 1 | |
|
Magnolia Town & Country Service |
5,715 | 1 | 0 | |
|
Prairie Road Water District |
2,598 | 3 | 1 | |
|
Better Waterworks Water System |
2,160 | 1 | 0 | |
|
Indian Village Water System |
2,082 | 2 | 1 | |
|
Cheniere Drew South Water System |
1,563 | 1 | 0 | |
|
Frost Town Water System |
1,551 | 1 | 1 | |
|
L&r North Water System |
1,293 | 0 | 0 | |
|
Magnolia-Western Utilities |
789 | 2 | 0 | |
|
Lincoln Hills Subdivision WS |
552 | 0 | 0 | |
|
Hidden Oaks Subdivision WS |
438 | 0 | 0 | |
|
McClendon Community Water Well |
336 | 2 | 0 | |
|
Ramsey Water System |
84 | 0 | 0 | |
|
Pecan Lake Subdivision WS |
57 | 0 | 0 | |
|
Magnolia Egret Landing |
42 | 1 | 0 | |
|
Wildwood MHP WS |
30 | 0 | 0 |
Non-community systems (5: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Graphic Packaging International INC a |
850 | 0 | 0 | |
|
Graphic Packaging International INC B |
850 | 1 | 1 | |
|
West Ouachita Ind Park |
500 | 0 | 0 | |
|
International Paper West Monroe |
200 | 0 | 0 | |
|
Bayou Boeuf RV Park Water System |
100 | 0 | 0 |
Inactive systems (135, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Louisiana records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.